Vaporizing type liquid fuel burner



July 10, 1951 G. c. PETER 2,560,367

lVAPQRIZING TYPE LIQUID FUEL BURNER Filed March 22, l94 9 IN VEN TOR.

ftion which `is united thereto.

Patented July 10, 1951 NUMTED v-sfr-A-res .PATENT .OFFICE 7 Claims.

This invention relates to improvementsin-potl type burnershand is concerned' primarily 'with means for simplifying the construction by'whi'ch to provide a plurality of inclined ports `Vthrough which air will be delivered inv desired 4quantities to points adjacent vthe burner base. Such aV burner will perform `better in consequence, and may be used successfully with space'heaters vand -heating plantsfor the heating 'of roomsfbuildings, etc. l

In the presentfburner the pot consists of a cylindrical body and a cup-shaped bottom AVsec- In the region of overlap ofthe circular'wall of thev bottom section with-the cylindrical body I provide a plurality-of ports. These ports are disposedin spaced" apart relation, and are desirably pitched so-that the'air passing through the ports will be disc-harged'into the Vinterior of the pot at lpoints adjacent ythe bottom and in such a direction as to produce a whirling motionof the air therewithin. There is accordingly provided a means for'inducing a circulation of air according toy a deiinite plan when vand as it is deliveredfinto' the burner Vto support the combustion of the hydrocarbonf'fuel therewithin n Certain suggestive embodiments of this inventionare shown inthe accompanying drawing wherein- Figure 1 is a vertical section throughva space heater wherein is operativelymounted the present burner;

Fig. 2 is a view in perspective -showingI Ithe cylindrical burner body separated slightly from the bottom section which'is designed'to'be united therewith; l

Fig. `3 is a fragmentary View, partly in vertical section, showing the bottom sectionand'the adjacent portion of the burner body;`

Fig. 4 which is a view. similar to Fig. 2 shows an arrangement of air ports which is somewhat modied; and

Fig. 5 which is a detail in horizontal section taken in a planewhere 'there isoverlap of the body walls andfbottom section, shows a mod'ied arrangement and dispositionoflthe airp'orts.

In Fig. 1 there isillustrated aspace heater having a drum D which is mounted within a cabinet C inspaced relation thereto. Above a bottom "l0 which is provided in'thedrumthere is mounted a burner pot P which may besuspended'in'itsoperative position as'byf'meansA` of a baiileplate Il which `is aixed'within 'the' drum. A fuel" pipe l2 leads from a source of supply of hydrocarbon fuel to the burner pot to connect therewith at a point close to its bottom.

Y2 The-present pot-type burnerconsists of alshelllike" body`2llformed atvits topwith yan out-turned 'flangel forl resting upon'the baffle plate l I'when 'the burner is suspendedtherefrom. In Vits, bottom `portion the-body is provided-with a pluralityof vinwardcrimps 22 each eXtending-upW'ardly-'for a limited distance -from lits bottom edge. Each crimp" 'constitutes a "port, or a one-half1 `part thereof,`having a cross sectional area which-vincreases toward Ythe bottom Vedge -of-thebody. Above'these crimps the body is pierced with a large number of openings 23 providingprimary air-invlets'and-near the top with othermore closely spaced' openings 24 to provide secondary lair inlets. All'these openings are desiraloly-y arranged inrowsaccording to adenite plan so Iasto assure' an inflow of air within the burner .pot in a predetermined manner.

The pot bottom section 2liy comprises-a Vbase'26 'having an upstanding peripheralwall 21 whichlis The diameter of lthis wall 2l may'fbe tting relationship. In the circular wall 2 I provide a plurality ofl outward crimps 28 which may correspond innumber, spacing,x and disposition to theinward'crimps `22Yinthe 4body 20. The

:cross sectional area of Pthese ports increases to- `wardthe top edge of theV circular wall 21. It is contemplated that when ythe `bottom `sectionis -assembled with the body the crimps "of-the one `maylie opposite -the crimps ofthe other so'that `the :two together will `dene a pluralityfofelongated ports whose upper ends open upon rthe exterior of the burner while the lower endsof ltheports open upon theinterio' thereofand close toits base 26. These'ports, bylreason of the-finverse relationship 'of the changing cross/sectional areasdened'by the complementary vcrimps'l22 and 28Tareiinclined inwardly (see lil-ig;y 3) fand, `vas shown,- are pitched all in thqsame direction.

T01' assist `in 'a' 'correct Arotative positioning vof ithe 'bottom sectionV withthe body 2B, a pin'a is `'extended oiitwardly'from theflatter Vat vapoint nearits bottom to enter a notch b-which opens out upon the top edge of the bottom section 25. l*lvherrthe'pinis entered within the" notch (see 'ligsv land/'3) the Several crimps will be in register to Vdeiinetherebetween theair ports which "constitute a featureof this invention. VIn such a condition of assembly theparts may beunited 'permanently' as by welding w `which'is 'applied valong' 'the 'top 'edge"ofthe"bottom section (see Fig. 3).

The arrangement of ports shown in Fig. 2 may be modified to some extent, one example thereof 3 being indicated in Fig. 4. Here I have provided a construction exactly the same as the one already described except that certain of the ports, every other one for example, are vertically disposed instead of being pitched. The result is that the air entering through the ports is not all discharged angularly upon the base of the bottom section, but only part of the air so supplied thereto; as a result the swirl or circular motion imparted to the air as delivered to the base is 'reduced somewhat in velocity. Except for this one change, the construction of Fig. 4 may be the same as that of Fig. 2. Y

Another modification is suggested in Fig. 5. Here the ports are shown to consist in part of oppositely facing crimps 3l and 32, as already described in connection with Figs. 2 and 4, or of crimps 33 which extend inwardly from the wall of the body 2U, or of crimps 34 which are extended outwardly from the circular wall of the bottom section 25. Where a single crimp only is used for a port, its cross sectional area will be somewhat reduced, unless the crimp be otherwise enlarged as suggested in Fig. 5. For many reasons it may be preferred to use a series of single crimps, or a mixture of single and double crimps, in providing the ports which lead the air into the burner pot at a point adjacent its bottom.

It will be noted that the bottom section, when lapped over the body in its bottom region, will provide therewith two confronting plies, whereas elsewhere the construction consists of one ply only. I take advantage of the two ply construction in the region of overlap to provide air ports in the simple manner hereinbefore described. As shown clearly in Fig. 3, each crimp 28 increases in depth and cross sectional area as it approaches the top edge of the circular wall 2l of the bottom section. The same is true of the crimps 22 in the body 20 except that the maximum depth and area of each is at the bottom end of the crimp. As a result, the axes of the crimps will be inclined inwardly from the vertical so that air entering through the ports will not be delivered straight downwardly. The angular direction in which the air enters the burner pot is further deflected by its impact with the rounded corner 30 where the base 26 joins with the circular wall 2l. For these various reasons the currents of air which enter through the ports are so disposed as to produce a swirling movement of the air therewithin, along the base 26 so as to promote vaporizationv of the fuel.

I claim:

1. In a device of the class described, a pot-like container for the burning of liquid fuel, the container comprising a continuous side wall and a cup-shaped bottom having its upstanding wall lapping the side wall and joined thereto, and complementary pairs of opposed crimps in the two walls defining between each pair thereof an air port leading downwardly and inwardly from an upper point exteriorly of the container to a lower point therewithin and relatively close to the bottom thereof.

2. A pot-like container according to claim 1 in which each pair of complementary crimps is pitched to deliver air atan angle to the container bottom whereby to produce a circular motion thereof within the container.

3. In a device of the class described, a pot-like container for the burning of liquid fuel, the con- Yfile of this patent:

tainer comprising a continuous side wall and a cup-shaped bottom having its upstanding wall lapping the side wall and joined thereto, and a plurality of crimps in one of the walls and complementary crimps in the other Wall, the crimps in each set being extended away from each other to define therebetween an air port leading downwardly from an upper point exteriorly of the Acontainer to a lower point therewithin and relatively close to the bottom thereof.

4. In a device of the class described, a pot-like container for the burning of liquid fuel, the container comprising a continuous side wall and a cup-shaped bottom having an upwardly curved peripheral portion to which is integrally joined an upstanding wall lapping for a substantial distance the side wall of the container exteriorly thereof and joined thereto, and a plurality of crimps in one of the lapping walls opposite the other wall and extended away therefrom to provide therebetween an elongated air port leading downwardly from an upper point above the upstanding wall of the bottom and exteriorly of the container toa lower point therebelow and relatively close to the curved peripheral portion of the bottom, but spaced therefrom sufficiently to ,deliver into the container fresh air in spaced streams for impingement upon the container bottom at substantially its curved peripheral portion from which the upstanding wall is extended.

5. A pot-like container according to claim 4 in which the ports are pitched in the same direction to deliver air atV an angle to the container bottom close to its upstanding wall whereby to produce a circular motion thereof about a common axis vertically of the'container.

6. -In a device of the class described, a pot-like container for the burning of liquid fuel the container comprising-a continuous side wall and a cup shaped bottom having its upstanding wall lapping theside wall and joined thereto, a plurality of elongated crimps in one of the walls disposed oppositely of the other wall and extended away therefrom to define therebetween an elongated air port leading downwardly from an upper point exteriorly of the container to a lower point therewithin and having its delivery end substantially at the bottom thereof but spaced therefrom sufficiently to deliver into the container fresh air in spaced streams which impinge upon the container bottom.

7. A pot-like container according to claim 6 in which the container bottom at its periphery is upwardly curved at the point of its connection with the upstanding wall, and the delivery ends of the air ports are so arranged as t0 deliver into the containerI air streams which impinge upon the upwardly curved peripheral portion of the container bottom.

' GUSTAVE C. PETER.

VREFERENCES CITED The following references are of record in the Y Y UNITED STATES PATENTS Number Name Date 1,657,652 Yvvucox 'Jan 31, 1928 2,226,216 BreeseA D ec. 24, 1940 2,358,012 A Kahn Sept. 12,v 1944 2,501,688 Peeling Mar. 28, 1950 

